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One type of commercial smoke detector contains a minute amount of radioactive americium-241 (241Am), which decays by alpha-particle production. The alpha-particles ionize molecules in the air, allowing it to conduct an electric current. When smoke particles enter, the conductivity of the air changes and the alarm buzzes.
The complete decay of 241Am involves successive alpha, alpha, beta, alpha alpha, beta, alpha, alpha, alpha, beta, alpha and beta production. Identify the 11 intermediate nuclides.
What is the final stable nucleus produced in this decay series?
A bicycle tire contains nitrogen, oxygen, and argon gases.If the partial pressures are 48.0 , 14.5 , and 0.4 , what is the total pressure (in atm)
Reaction rate laws are frequently used to investigate reaction mechanisms. Would your results to this experiment be consistent with either or both of the following mechanisms?
What is the pH of a solution that is formed at 25C by combining 300 mL of 0.040 M NaOH with 400 mL
why is vapor unlikly to behave as an ideal gas near the temperature at which the vapor would liquefy
water from 20 degrees Celsius to 100 degrees Celsius. What is the delta H of combustion of the propane. What is the sign (positive or negative) of delta H?
The temperature inside my refrigerator is about 40 Celsius. If I place a balloon in my fridge that initially has a temperature of 220 C and a volume of 0.5 liters
What is the change in total pressure within the chamber following the reaction? Assume a constant temperature throughout the process.
A solution containing the thiourea complex of bismuth (III) has a molar absorptivity of 9.32*10^3 l/mol*cm at a wavelength of 470 nm
A solution is prepared by mixing 0.3355 mol of NaNO3 (84.995 g mol-1) with 235.0 g of water (18.015 g mol-1). Its density is 1.0733 g mL-1. What is the molality of the solution?
How many grams of carbon monoxide (CO) are produced from a mixture of 70.0g SiO2 and 50.0 g of carbon. The balance ewaution is given below.
Give the structure and names of five alkenes having the molecular formula C6H12 that produce hexane on catalytic hydrogenation.
what radial position is the velocity of an individual fluid element equal to the average velocity of the fluid? (r= r subscript c and 0
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